Commenting on their desicion Chelsea, who is from the States, said: "I had a lot of government on my mind and was feeling super thankful for all the changes in our country that makes our international same-sex marriage even possible.

When we started dating in 2011, marriage was the last thing on our minds – partially because we were 18 and living in different countries, but also because the idea of same-sex marriage was still so new."

The first family wished binational couple Chelsea Roden and Lisa Hirschpek well on their wedding day.

Although the Obamas won't be able to attend the wedding they responded with the touching note: "Congratulations to you on your wedding day... May this special time be blessed with love, laughter, and happiness.

We wish you all the best as you embark on your journey together, and we hope your bond grows stronger with each passing year."

Chelsea and Lisa didn't expect any reply and were extremely happy to recieve the official letter, describing it as "a really sweet thing to have" and promosing to “definitely frame it or put it in a scrapbook.”

The White House is lit up in rainbow colors in commemoration of the Supreme Court's ruling to legalize same-sex marriage

The young women are now looking forward to getting married this autumn.

Recall that in the United States of America, same-sex marriage has been legal nationwide since June 26, 2015, when the United States Supreme Court ruled in that state-level bans on same-sex marriage are unconstitutional.